diff --git a/plugins/3MFReader/ThreeMFWorkspaceReader.py b/plugins/3MFReader/ThreeMFWorkspaceReader.py
index 2e395c9efa..ba169f3dab 100755
--- a/plugins/3MFReader/ThreeMFWorkspaceReader.py
+++ b/plugins/3MFReader/ThreeMFWorkspaceReader.py
@@ -4,7 +4,8 @@
 from configparser import ConfigParser
 import zipfile
 import os
-from typing import cast, Dict, List, Optional, Tuple
+import json
+from typing import cast, Dict, List, Optional, Tuple, Any
 
 import xml.etree.ElementTree as ET
 
@@ -732,7 +733,25 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
 
         base_file_name = os.path.basename(file_name)
         self.setWorkspaceName(base_file_name)
-        return nodes
+
+        return nodes, self._loadMetadata(file_name)
+
+    @staticmethod
+    def _loadMetadata(file_name: str) -> Dict[str, Dict[str, Any]]:
+        archive = zipfile.ZipFile(file_name, "r")
+
+        metadata_files = [name for name in archive.namelist() if name.endswith("plugin_metadata.json")]
+
+        result = dict()
+
+        for metadata_file in metadata_files:
+            try:
+                plugin_id = metadata_file.split("/")[0]
+                result[plugin_id] = json.loads(archive.open("Cura/plugin_metadata.json").read().decode("utf-8"))
+            except Exception:
+                Logger.logException("w", "Unable to retrieve metadata for %s", metadata_file)
+
+        return result
 
     def _processQualityChanges(self, global_stack):
         if self._machine_info.quality_changes_info is None:
diff --git a/plugins/3MFWriter/ThreeMFWorkspaceWriter.py b/plugins/3MFWriter/ThreeMFWorkspaceWriter.py
index 33df0bfe90..10a21f445b 100644
--- a/plugins/3MFWriter/ThreeMFWorkspaceWriter.py
+++ b/plugins/3MFWriter/ThreeMFWorkspaceWriter.py
@@ -73,11 +73,25 @@ class ThreeMFWorkspaceWriter(WorkspaceWriter):
         version_config_parser.write(version_file_string)
         archive.writestr(version_file, version_file_string.getvalue())
 
+        self._writePluginMetadataToArchive(archive)
+
         # Close the archive & reset states.
         archive.close()
         mesh_writer.setStoreArchive(False)
         return True
 
+    @staticmethod
+    def _writePluginMetadataToArchive(archive: zipfile.ZipFile) -> None:
+        file_name_template = "%s/plugin_metadata.json"
+
+        for plugin_id, metadata in Application.getInstance().getWorkspaceMetadataStorage().getAllData().items():
+            file_name = file_name_template % plugin_id
+            file_in_archive = zipfile.ZipInfo(file_name)
+            # We have to set the compress type of each file as well (it doesn't keep the type of the entire archive)
+            file_in_archive.compress_type = zipfile.ZIP_DEFLATED
+            import json
+            archive.writestr(file_in_archive, json.dumps(metadata, separators = (", ", ": "), indent = 4, skipkeys = True))
+
     ##  Helper function that writes ContainerStacks, InstanceContainers and DefinitionContainers to the archive.
     #   \param container That follows the \type{ContainerInterface} to archive.
     #   \param archive The archive to write to.
diff --git a/plugins/3MFWriter/ThreeMFWriter.py b/plugins/3MFWriter/ThreeMFWriter.py
index 640aabd30c..9860804542 100644
--- a/plugins/3MFWriter/ThreeMFWriter.py
+++ b/plugins/3MFWriter/ThreeMFWriter.py
@@ -1,5 +1,6 @@
 # Copyright (c) 2015 Ultimaker B.V.
 # Uranium is released under the terms of the LGPLv3 or higher.
+from typing import Optional
 
 from UM.Mesh.MeshWriter import MeshWriter
 from UM.Math.Vector import Vector
@@ -40,7 +41,7 @@ class ThreeMFWriter(MeshWriter):
         }
 
         self._unit_matrix_string = self._convertMatrixToString(Matrix())
-        self._archive = None
+        self._archive = None  # type: Optional[zipfile.ZipFile]
         self._store_archive = False
 
     def _convertMatrixToString(self, matrix):
diff --git a/resources/qml/MainWindow/ApplicationMenu.qml b/resources/qml/MainWindow/ApplicationMenu.qml
index 1ddb0410b2..05e349841b 100644
--- a/resources/qml/MainWindow/ApplicationMenu.qml
+++ b/resources/qml/MainWindow/ApplicationMenu.qml
@@ -127,8 +127,8 @@ Item
         icon: StandardIcon.Question
         onYes:
         {
-            CuraApplication.deleteAll();
-            Cura.Actions.resetProfile.trigger();
+            CuraApplication.resetWorkspace()
+            Cura.Actions.resetProfile.trigger()
             UM.Controller.setActiveStage("PrepareStage")
         }
     }